18 U.S.C. § 508

Whoever falsely makes, forges, or counterfeits in whole or in part, any form or request in similitude of the form or request provided by the Government for requesting a common carrier to furnish transportation on account of the United States or any department or agency thereof, or knowingly alters any form or request provided by the Government for requesting a common carrier to furnish transportation on account of the United States or any department or agency thereof; or Whoever knowingly passes, utters, publishes, or sells, or attempts to pass, utter, publish, or sell, any such false, forged, counterfeited, or altered form or request— Shall be fined under this title or imprisoned not more than ten years, or both.